APA Style
GUBA, Egon G. (1991).
Effective Evaluation : improving the usefulnes of evaluation throught .
Oxfprd:
Jossey Bass.
Chicago Style
GUBA, Egon G.
Effective Evaluation : improving the usefulnes of evaluation throught.
Oxfprd:
Jossey Bass,
1991.
Text.
MLA Style
GUBA, Egon G.
Effective Evaluation : improving the usefulnes of evaluation throught.
Oxfprd:
Jossey Bass,
1991.
Text.
Turabian Style
GUBA, Egon G.
Effective Evaluation : improving the usefulnes of evaluation throught.
Oxfprd:
Jossey Bass,
1991.
Print.